package com.team7.happycommunity.personcentor.service.impl;

import com.team7.happycommunity.personcentor.dao.CommunityChatDao;
import com.team7.happycommunity.personcentor.entity.CommunityChat;
import com.team7.happycommunity.personcentor.service.CommunityChatService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * (CommunityChat)表服务实现类
 *
 * @author makejava
 * @since 2020-03-24 16:58:04
 */
@Service("communityChatService")
public class CommunityChatServiceImpl implements CommunityChatService {
    @Resource
    private CommunityChatDao communityChatDao;

    /**
     * 通过ID查询单条数据
     *
     * @param id 主键
     * @return 实例对象
     */
    @Override
    public CommunityChat queryById(Integer id) {
        return this.communityChatDao.queryById(id);
    }

    /**
     * 查询多条数据
     *
     * @param offset 查询起始位置
     * @param limit 查询条数
     * @return 对象列表
     */
    @Override
    public List<CommunityChat> queryAllByLimit(int offset, int limit) {
        return this.communityChatDao.queryAllByLimit(offset, limit);
    }

    /**
     * 新增数据
     *
     * @param communityChat 实例对象
     * @return 实例对象
     */
    @Override
    public CommunityChat insert(CommunityChat communityChat) {
        this.communityChatDao.insert(communityChat);
        return communityChat;
    }

    /**
     * 修改数据
     *
     * @param communityChat 实例对象
     * @return 实例对象
     */
    @Override
    public CommunityChat update(CommunityChat communityChat) {
        this.communityChatDao.update(communityChat);
        return this.queryById(communityChat.getId());
    }

    /**
     * 通过主键删除数据
     *
     * @param id 主键
     * @return 是否成功
     */
    @Override
    public boolean deleteById(Integer id) {
        return this.communityChatDao.deleteById(id) > 0;
    }
}